Crank no start
Take a jumper cable and grab the ECU case on some clean metal and the new battery post, see if that changes anything. Thats your grounded case test. reduced voltage to coil is not mandatory, jump that too with the other side of your jumper cables to battery positive unless someone here can tell us it could damage something...? Mopar electronic ignition....let's count the threads on this board relating to this topic! Mallory box with stock E-distributor......damn that ballast resistor!